(19)

(11)

EP 0 877 993 A1

(12)

(43) Date of publication: 18.11.1998 Bulletin 1998/47 (21) Application number: 97902958.0 (22) Date of filing: 23.01.1997

(51) International Patent Classification (IPC):  H04M 3/ 00( . ) H04M 11/ 00( . ) H04L 12/ 28( . ) H04L 12/ 58( . ) H04W 84/ 02( . ) (86) International application number: PCT/US1997/000670 (87) International publication number: WO 1997/028518 (07.08.1997 Gazette 1997/34)

(84) Designated Contracting States: DE FR GB (30) Priority: 30.01.1996 US 19960594072 (71) Applicant: MOTOROLA, INC. Schaumburg, IL 60196 (US)	(72) Inventors: TALTON, Gerald, Burton, Jr. Boynton Beach, FL 33462 (US) GEIL, Richard, Douglas Boynton Beach, FL 33426 (US) WEINER, Robert Saratoga, CA 95070 (US) (74) Representative: Morgan, Marc, et al  Motorola European Intellectual Property Operations, Midpoint, Alencon Link Basingstoke, Hampshire RG21 7PL Basingstoke, Hampshire RG21 7PL (GB)